Automatic feed-water regulator.



No. 658,239. I Y Y Patented Sept. I8, I900.

- c. .1. COLEMAN.

AUTOMATIC FEED WATER REGULATOR.

(Application filed Oct. 27, 1899.)

(No Model.)

m: uonms mans 0a.. wovouma. wnsumsmn, a cv UNITED STATES PATENT FFICE,

CLYDE J. COLEMAN, OF CHICAGO, ILLINoIs, ASSIGNOR TO THOMAS J. RYAN,

- OF NEW YORK, N. Y.

AUTOMATIC "FEED-WATER REGU LATO R.

SPECIFICATION forming part of Letters Patent No. 658,239, datedSeptember 18, 1900.

Application filed October 2 7, 1899.

T0 ctZZ whom it may concern:

Be it known that I, CLYDE J. COLEMAN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in AutomaticFeed-WaterRegulators; and I do hereby declare the following to be afull, clear, and exact description of the same, reference beinghad tothe accompanying drawings, forming a part of this specification.

The present invention relates to that class of automatically controlledmotive power systems in which an elastic vapor, such as steam, affordsthe operating pressure of the system.

The object of the present improvement is to provide a simple andefficient motive-power apparatus in which the feed of the water or othersupply to the generator is controlled and regulated in an automaticmanner, as will hereinafter more fully appear, and be more particularlypointed out in the claims. I attain such object by the construction andarrangement of parts illustrated in the ac companying drawings, inwhich-- Figure 1 is a sectional elevation of a motive-power apparatusembodying the present invention, and Fig.2 an enlarged fragmentary sideelevation of the operating mechanism of the air-Valve of the presentimprovement.

Similar numerals of reference indicate like parts in both views.

Referring to the drawings, 1 represents the pressure-generator orboiler, in which steam or other analogousvapor is generated; 2, a burnerbeneath such generator, preferably a fuel-gas burner of any usual andsuitabletype, the supply of fuel-gas to which is controlled by anelectromagnetically-actuated valve 3, the electromotive circuit of whichis in turn controlled by athermostat 4:, arranged within the influenceof the generator and adapted with a rise in temperature in the generatorabove a predetermined point to open the electromotive circuit of thebattery 5 and electromagnet of the valve 3 to permit the valve to closeand shut ofi the supply of fuelgas to the burner either in whole or inpart and with a fall in the temperature in the generator below suchpredetermined point to Serial No. 734,968. (No model.)

nected in the usual tangential manner to the inclosing casing 8 of themomentum-motor wheel 9, which in the form shown in the drawings asillustrative of the present invention is of the bladed or bucketed'type,against the buckets or blades of which the motive fluid is discharged inone or more tangential jets to impart rapid rotation thereto, as usualin this type of momentum-motors; and accordingly such particular type ofmotor may be replaced by any other well-known type of momentum-motor,such as a turbine-motor, without departing from the spirit of this partof the present invention, and in such replacement the discharge-passagesfrom the outletpipe 7 will be correspondingly modified, as the judgmentof the constructor may suggest.

10 is the power-shaft, to which the momentum-motor heretofore describedhas direct operative connection.

11 is a belt-pulley on the main shaft, having belt connection 12 with agovernor pulley or wheel 13 on the counter-shaft 14, as shown in thedrawings. Such governor-pulley may be of any ordinary and usualconstruction, with the centrifugal governor-weights l5 pivoted to theweb of the pulley and adapted to impart a lateral movement to thecollar. or disk 16, usually by a screw-threaded end of the pivot-studsof said weights engaging similarly-formed sockets in said collar ordisk, as illustrated in the drawings. The collar or disk is guided inits movement upon the fixed counter-shaft 14 and in its movementresponsive to that of the governor-weights is in turn adapted to impartmotion to a throttlevalve 17 in the motive-fluid-outlet pipe 7 throughlever-and-link con neotions 18 and 19 to govern and regulate the speedof the engine, as usual in this class of mechanism.

roo

20 is a single-acting plunger-pump having valved inlet connection 21with the source of water or other fluid supply for the boiler 1 and avalved out-let passage 22 connected to the generator 1 and made of somecapacity for purposes hereinbefore stated.

23 is a crank-pin carried by the governor wheel or pulley l3 and adaptedto impart continuous motion to the pump during the operation of theapparatus through pitman connection 24 with the pump-plunger, as shown.

25 is a semirotary valve arranged in the pump-casing and adapted when inits open position, as shown in the drawings, to provide an opencommunication between the valvechamber of the pump and the atmosphere,so that in the operation of the pump with such valve open air alone willbe drawn in and exhausted through the valve opening and a pumping of thefeed-water into the boiler prevented.

An automatic operation is imparted to the valve 25 by the followingmechanism: 26 is a float arranged within the interior of the boiler orgenerator 1 and having link connection with an arm 27, loosely journaledon the shaft 28 of the valve. lhe arm 27 has intermittent operativeconnection by means of a pin or stud 29 and segmental slot 30 with aweighted arm or lever 31, also loosely journaled on the shaft 28 of thevalve, the arrangement being such that the weighted end of the leverwill be lifted to a position a little past a perpendicular in a positivemanner, so that it will have a falling motion to one side or the otherof such perpendicular after a final upward or downward movement of thefloat and the intermediate operative connections just described.

In the described construction the valveshaft 28 is located in theconnecting passage or duct 22 between the pump and the generator andpasses through the-wall of the pump in manner shown, the constructionbeing such that the valve-shaft and its operative connections are whollyhoused within the generating-chamber and the connecting-duct between thesame and the feed-pump, and the necessity of a st-uffing-box around suchshaft is avoided in a very perfect manner.

The weighted arm or lever 31 has in turn an intermittent operativeconnection by means of a pin or stud 32 and segmental slot 33 with anarm 34:, fixed on the shaft 28 of the valve, the arrangement being suchthat active engagement between the parts is only had during the fallingmovement of the Weighted leto change the conditions of the feed-watersupply.

Having thus fully described my said invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In an automatic feed-water regulator, the combination of avapor-pressure generator, a motor, a feed-pump operated by said motor, asingle separating-wall between the generator and pump, means for openingcomm unication between the atmosphere and valve-chamber of the pump, anoperatingshaft for such means, and means within the generator forautomatically controlling the operation of said shaft, said shaftextending through the said separating-wall.

2. In an automatic feed-water regulator, substantially as hereindescribed, the co1nbination of a vapor-pressure generator, a motor, afeed-pump operated by said motor in a constant manner, a d notconnecting the valvechamher of the pump with the generatingchamber,means for opening communication between the atmosphere and thevalve-chamber of the pump, and means wholly Within the generator and theconnecting-d not for antomatically controlling such communication,substantially as set forth.

3. In an automatic feed-water regulator, substantially as hereindescribed, the combination of a vapor-pressure generator, a motor, afeed-pump operated by said motor in a constant manner, a duct connectingthe valve chamber of the pump with the generator, means for openingcommunication between the atmosphere and the valve-chamber of the pump,and means wholly within the generator, and the connecting-duct forautomatically controlling such communication, the same comprising afloat, a link, a weighted trip mechanism, and a rock-shaft extending tothe means for opening such communication, substantially as set forth.

In testimony whereof witness my hand this 6th day of September, 1899.

CLYDE J. COLEMAN.

In presence of- ROBERT BURNs, H. A. NOTT.

